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Topic: Pict 34 adjustment  (Read 8343 times)

Offline Bugz

  • Burlington, NC
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Pict 34 adjustment

« on: March 30, 2004, 08:35:22 AM »
Got my engine in this past weekend but it won't idle after it warms up. I'm going to do a carb rebuild later this week but I don't have a clue as how to adjust it. It is Pict 34. Can anyone give me some advice on adjusting it when it is reinstalled? :cool:

Offline Zen

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Pict 34 adjustment

« Reply #1 on: March 30, 2004, 08:37:52 PM »
I know it's not what you want to hear, but here's how I recommend adjusting a 34 PICT carb. (Almost a required procedure if you are running a 009 distributor) . . .

Step 1, Unhook it and remove it.

Step 2, Drain all the gas out of it.

Step 3, Take all of the screws out of the top of it and out of the accelerator pump and put them in a safe place.

Step 4, Toss the rest of it in the garbage.

Step 5, Buy an adapter plate and a new Brosol 30-31

Step 6, Bolt the adapter to the new 30-31 carb

Step 7, Void the warranty on the 30-31 carb (if it even had one) by tightening up all the screws that the factory left loose (or just wait about 3 months and when it stops running, tighten up the two remaining screws and try to find the screws you saved from the 34 and replace all the missing ones).  While you're at it, tighten up the idle cut-off solenoid . . . they probably left it loose too.  (It's an EXCELENT Carb, but folks in Brazil must not know how to tighten screws!)

Step 8, Bolt the adapter and carb onto the intake and hook it up.

Step 9 . . . Close the decklid and go for drive!  Well, you might need to adjust the idle speed with the big adjustment screw on the left side of the carb first, but all of them I've installed worked great right out of the box (at least until the screws started falling out of them).

I've personally NEVER been able to get a 34 PICT tuned right.  They were engineered by VW to work with a specific grade of gas, at a specific compression ratio and with a specific advance curve built into the distributor.  Slightly change any piece of that puzzle and a 34 is plagued with flat spots.

Offline Bugz

  • Burlington, NC
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Pict 34 adjustment

« Reply #2 on: March 31, 2004, 07:54:50 AM »
Thanks. That's good info. I'll look into that. :)

Offline vwherb

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Pict 34 adjustment

« Reply #3 on: March 31, 2004, 03:39:54 PM »
There are a few folks who swear by the "34" but the ones I know of are spending time in a nervous hospital somewhere and taking massive amounts of some type of anti-depressant. I have thrown ALL of my "34s" away and I've been able to cut way back on my medication but I can't completely drop it because of the permenant damage done by that d*#%! carbureator.

Take Zen's advise and GET RID OF IT BEFORE IT'S TOO LATE!!!

                                                                      :cool:

Offline Dr. FieldingGood

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Pict 34 adjustment

« Reply #4 on: April 01, 2004, 07:33:12 AM »
Well I will put in my two cents worth. They are absolutely right. When I took the duals off Herbie I tried 4 different 34s, two of them out of the box from a parts house. None of them were worth a d$#n. I put a 30/31 on him and havent had a problem since. I know a couple of people who have 34s and think they are good but like Herb said, in a institution or belong there one. Wait till the show and Sundance will give you a good deal.

Offline Zen

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Pict 34 adjustment

« Reply #5 on: April 08, 2004, 08:35:12 PM »
I left out a step (just figured this one last weekend) . . .

3A - Remove the choke element and put it with the screws. (You're going to need it in about a year when your Brosol choke element shorts out and kills your engine)



Edited By Zen on 1081471010

Offline Bugz

  • Burlington, NC
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Pict 34 adjustment

« Reply #6 on: April 20, 2004, 07:25:44 AM »
:) Well, I got my 30/31 installed last night and even for a mechanical idiot like me it was relatively easy. Didn't find anything loose on it though. Started her up and she ran like a champ - at least the engine does. I still have a power problem I can't figure out though. On a flat and downhill I can go fairly well but on a hill or even a slight elevation I loose power (not the electrical kind). I'm going to change my intake gaskets and the rubber intake boots and see if that helps but it doesn't sound like an engine thing cause the engine runs fine except for an occasional miss on one of the cylinders but I expect that to be fixed when I change out plugs and plug wires. What would cause me to lose power? Could my clutch need adjusting?

Offline Zen

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Pict 34 adjustment

« Reply #7 on: April 20, 2004, 11:41:42 AM »
Have someone hold the pedal to the floor and make sure it's pulling the throttle all the way open.  Also make sure that after 4 or 5 minutes your choke is fully opened.  Those are two common problems that will rob top end power.

If it's your clutch, when you hit a hill, the engine will speed up but the car won't, or the engine will hold it's speed and the car will slow down.

Offline vwherb

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Pict 34 adjustment

« Reply #8 on: April 20, 2004, 03:20:30 PM »
Your timing being off could also cause you to loose power in a climb. If the throttle is opening completely and your choke is functioning properly then put a timing light on it.


                                                                            :cool:

Offline Bugz

  • Burlington, NC
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Pict 34 adjustment

« Reply #9 on: April 23, 2004, 12:55:48 PM »
Man did that Brosol 30-31 work good. Didn't hardly have to adjust it either :)  Thanks for that suggestion Zen.

Offline Bugz

  • Burlington, NC
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    • Charlton Wiggins - Latitude 35° Imprinted Sportswear

Pict 34 adjustment

« Reply #10 on: April 24, 2004, 02:51:00 PM »
Well, I think I figured out my power problem. I had the distributor turned all the way around and was trying to get it to work with #3 firing in the #1 position. :p
If I hadn't done as Herb suggested and put a timing light on it I might not ever have discovered it. When I put the light on it I couldn't figure out why my bottom dead center mark was on top! Well, I got it turned around and fired it up but alas it was backfiring severely! "A-ha!" I thought, I have to reset my valves since I had originally set them with top dead center being on #3! Actually, I didn't figure that part out - I called my brother in Burlington, NC and he figured it out. Now I just have to wait a few hours for the engine to cool appropriately and I can readjust my valves.
Now if I can just get my lights to work right...

Offline eakanator

  • Rome, Ga
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Pict 34 adjustment

« Reply #11 on: April 27, 2004, 01:53:29 PM »
Where did you purchase the Brosol 30/31?
Ron

Offline Bugz

  • Burlington, NC
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    • Charlton Wiggins - Latitude 35° Imprinted Sportswear

Pict 34 adjustment

« Reply #12 on: April 27, 2004, 04:04:54 PM »
At Bug-A-Palüza 6. A lot of the venders had one or two. If you wait for a show you can get better deals on parts. Mine is regularly priced at $185 and I got it at the show for $95. I imagine you can pick up one from a vendor at Circle Yer Wagons in Sevierville this weekend. If you can't wait, then Mainly Foreign on Rossville Blvd. has them at full price, or they did when I checked the week before BP6.

Offline eakanator

  • Rome, Ga
  • Joined: Apr 2004
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Pict 34 adjustment

« Reply #13 on: April 27, 2004, 04:24:40 PM »
that's Kool, Once I see if I can get this bug running, see how the factory carb will do, Daughter was in a Girls softball tournament when the Bug-A-Palüza was going on, me & wife strolled through, it looked there was a lot of parts for sale. Can't wait for another show to go through somewhere close by.
Thanks
Ron

Offline vwherb

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Pict 34 adjustment

« Reply #14 on: April 27, 2004, 09:14:50 PM »
Ron, there will be a group of us going up to Seveirville for the Circle Yer Wagens show Friday, leaving from the Bi Lo in OOltewah at either 9am or 10am. There will be another group going up Saturday and once again leaving from the Bi Lo in Ooltewah around 6:30am.

Come and join in with us!


                                                                         :cool:

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